Instability of fermionic, vectorial, and tensorial fields in curved spacetimes

• Grant number: 15/26438-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: June 01, 2016
• End date: February 29, 2020
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Daniel Augusto Turolla Vanzela
• Grantee: Caio Cesar Holanda Ribeiro
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

The "vacuum awakening" effect has been extensively studied in the context of scalar fields. In particular, its connection with spontaneous scalarization has been established in the astrophysical scenario of compact objects, showing that vacuum fluctuations of a quantized scalar field seed, after decoherence, classical perturbations which then evolve to the scalarized configuration. This project aims at analyzing the occurrence of this sort of instability but now for fields associated to particles with spin, like the Dirac and Weyl fields (spin 1/2), the Maxwell and Proca fields (spin 1), and the graviton field (spin 2). This analysis is not only natural to complement previous results but it is also necessary in order to properly evaluate the extent of the implications of these instabilities in realistic scenarios. (AU)

Scientific publications

(7)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DE LORENCI, V. A.; RIBEIRO, C. C. H.. Remarks on the influence of quantum vacuum fluctuations over a charged test particle near a conducting wall. Journal of High Energy Physics, n. 4, APR 9 2019. (15/26438-8)

CAMARGO, G. H. S.; DE LORENCI, V. A.; RIBEIRO, C. C. H.; RODRIGUES, F. F.; SILVA, M. M.. Vacuum fluctuations of a scalar field near a reflecting boundary and their effects on the motion of a test particle. Journal of High Energy Physics, n. 7, JUL 30 2018. (15/26438-8)

CAMARGO, G. H. S.; DE LORENCI, V. A.; RIBEIRO, C. C. H.; RODRIGUES, F. F.. Vacuum induced dispersions on the motion of test particles in D+1 dimensions. Physical Review D, v. 100, n. 6, SEP 23 2019. (15/26438-8)

CAMARGO, G. H. S.; DE LORENCI, V. A.; RIBEIRO, C. C. H.; RODRIGUES, F. F.; SILVA, M. M.. Vacuum fluctuations of a scalar field near a reflecting boundary and their effects on the motion of a test particle. Journal of High Energy Physics, v. N/A, n. 7, p. 17-pg., 2018-07-30. (15/26438-8)

DE LORENCI, V. A.; RIBEIRO, C. C. H.. Remarks on the influence of quantum vacuum fluctuations over a charged test particle near a conducting wall. Journal of High Energy Physics, v. N/A, n. 4, p. 17-pg., 2019-04-09. (15/26438-8)

RIBEIRO, CAIO C. HOLANDA; VANZELLA, DANIEL A. TUROLLA. Analogues of gravity-induced instabilities in anisotropic metamaterials. PHYSICAL REVIEW RESEARCH, v. 2, n. 1, MAR 9 2020. (15/26438-8)

CAMARGO, G. H. S.; DE LORENCI, V. A.; RIBEIRO, C. C. H.; RODRIGUES, F. F.. Vacuum induced dispersions on the motion of test particles in D+1 dimensions. PHYSICAL REVIEW D, v. 100, n. 6, p. 10-pg., 2019-09-23. (15/26438-8)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

RIBEIRO, Caio Cesar Holanda. Aspects of active quantum vacua: analogue models and quantization in dispersive media. 2020. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) São Carlos.